.navbar .dropdown-menu {
  background-color: #343A40;
}
.navbar .dropdown.show a {
  background-color: #343A40;
}
.containerpage
{
  padding:10px;
  min-height:500px;
}
.red
{
  color:red;
}
input.double,.double
{
  -ms-transform:scale(1.5);
  -moz-transform:scale(1.5);
  -webkit-transform:scale(1.5);
  -o-transform:scale(1.5);
}